(From the publisher):
When Nancy and Helen Corning get swept up in a lake storm, mysterious Laura Pendleton comes to their rescue. Her mother recently having passed away, Laura has come to meet up with her new guardians and something isn't quite right about them. Their mistreatment of Laura leads Nancy to investigate and stumble upon a shocking surprise in the cellar of a bungalow. Nancy must use her wits to overcome the villains and solve this baffling mystery involving Laura's guardians!
Original title: The Bungalow Mystery
Genre: Fiction→ Children & Young Adult→ Mystery